Oven.



3.1. NEEDHAM Ka, G. SCHELDELER.

OVEN. APPLmATlON FILED ,1:16.28. 1911'.

Patented Jan. 29, 1918.

.5W /jy strnirns Param* OFFICE.

' Janne .LINEEDHAM AND esonera scHEIDnLnn, or NEW Yoan, N. Y. v

ovnis.

Application led August 28,1917. Serial No. 188,557.

1 fa -aZZ ywho-fw t may concern.'

Be it known that We, JAMES J. NEEDHAM and GEORGE Scrrnmnwn, citizens of the United States, the former iresiding 1n New York,A county of New York,and State of Newv York, and the latter-:residingrln New York, count l'of Queens, and -Stateof New York, have 1n' \zented.eertain new and useful Improvements in Ovens, of which theifol-l lowing is aspecivilisation.,v l

Y The present invention is a portable, collapsible oven whch is adapted generally for use inthe baking of bread or vother foods in largeA quantities for military 4units or other lar e bodies o (people. The preferred form as s iownfin'the.'

Referenee l is had to the IaccompanyingA drawings which represent as an example the preferred embodiment of the idea.

Figure l is a sectional elevation of the oven when placed on a vehicle.

Fig. 2 is a front View 'of the oven 1n place.

Fig.v 3l is va section throughthe line 3 1-3- lma.

' asbestos on the insideandoutsida 11, reprei .sente the side walls of the -oyenpro'pen 12 represents plates which are soarrangedas to provide 'the greatest heatcontalning device practicable 13- is the. baseof the oven.

v14: is the usua Hoor. 15'andv1'7 arechimneys and 16 represents the peculiar channels which are an'irnportant improvement in my invention.

lThe ovenlis constructed by irst'laying the base 13 and filling it with sand, then covering the filled base-with the sliding bottom il. The sides lll are secured to the base and top byhinges lSand 19' respectively. When these are in {n sitionthe halves of. the domeshaped top 20 are swung' over' from "both sides so `that theymeet at 21. The' inside top walls are provided with angleV ironswith holes along the center line through which l. f. .22 and hooks 23 which connect Witix'sliaples rawing. showsan oven which @an be.ltakeaf.end pekesl '111 Patentedv J an. 29, 1918.

the bolts are run for the. plurpose of holding the partsv of .the dome-togetier, ',lghe des 12 are ixed in position' bye-'means ges 2 4. .There are -a number of these hooks and staples extendingalolng the upper edge of theoven. Havin built the oven to this exa; I tent the front .wa lis then-put on by means of bol-ts 31 which are` put through-the bolt holes 30 in the frame structure. The back is similarly applied by means of bolts. The sides of the oven .between the walls l2 and ll are lilled with clayor other heat containing means and clay is similarly piled upon the top and at the back -of-the oven.,

When the oyen is thus ready foroperation th nteieellsavity is filled with some firing meansand the fire is allowed to'burn for a number of hours or whatever time'is thought suiiicient for thepurpose. Then the4 lire is removed andl the'food to be cooked is vpla-eed in the oven. At the top of theoven are openings 35 on both sides which openings lead into the channel ldthrough which the gases flow tow-ard and through the chimney 17. Thel channel is larger.' at the end nearest the openin l35 than at the entrance to the chimney for the purpose of providing a good draft. It can be seen that by' this construction the heat is distributed along the whole length of the oven. After the-re has been vren-loved from the oven .and Ait isready for thexfood which is to be cooked, the tops 36 Which'are hinged-totherchimneysfare-closed. i

lI-tcan be seenthat the device as shown' provides a vvery light, portable and easily constructed oven .whicliwill do the' work for Vwheh'it isbuilt with the efficiencyneededl in such Work and which is particularly adapted fonthe needs of thearmy.

What We-claim is l, In an oyenthecombination of a hollow base, hinged side walls and top', front and rear Wallsy insulated inside land out with asbestos, a-n opening in the top and a draft 4chimney running along the top to 'a chimney opening for the purpose specified. In an roven the cmbinationof a hollow base and asliding removable floor,

hinged side walls and .top,`frontand rear.

Walls'insl'llated inside and outwith asbestos,

.an openin in the topand a draft chimney running a ong the -top to a chimney opening ning along the top, the end over base anda sliding removable 11001', vhinged side Walls and top, front and rear Walls'in sulated inside and out With asbestos, an

opening in the top and a draft chimneyrunning along the top, the end over the opening being larger than the end entering the chimney opening for the purpose specified.

In an oven the combination of a. hollow base and a slidingremovable Hooi", hinged side Walls `and top, front and Arear Walls in asbestos, ai@ y sulated. inside 'and out with opening in the top and adraft chimney 1,-

being larger than the end entering the chimney opening, vmeans hinged to the base for allowing the holding of 4a, heat retaining, 4means at the sides and top of the oven. 5. In an oven the'combination of a hollowA base anda sliding removable floor, hinged side Walls andtop', front and'rear Walls insulated insideandout with-asbestos, an

opening in the top and a draft chimney run-4 ni-ng along'the"'top;"'the' endovethf" 'lei'i'g being larger than the end entering the chimney opening, means hinged to the base for lbination of. a base the openiiig y tiltering the chimney, a" hinged cap on the tenimney, front andrear Walls ofthe oven constructed with lasbestos insulation on the"`V outside and inside, a door` on the front Wall with the usual slide draft for the purpose specified.

In testimony whereof We aiiix our signatures in presence of two Witnesses.

JAMES J. NEEDHAM. GEORGE SCHEIDELER.

. W'itnessvesm':` u

.IA-Mns I. MOORE, HoWARn S. LA VELLE. 

